[go: up one dir, main page]

EP1781828B1 - Dispositif pour proteger des surfaces metalliques de condensats de milieux corrosifs a haute temperature dans des installations techniques - Google Patents

Dispositif pour proteger des surfaces metalliques de condensats de milieux corrosifs a haute temperature dans des installations techniques Download PDF

Info

Publication number
EP1781828B1
EP1781828B1 EP05769577A EP05769577A EP1781828B1 EP 1781828 B1 EP1781828 B1 EP 1781828B1 EP 05769577 A EP05769577 A EP 05769577A EP 05769577 A EP05769577 A EP 05769577A EP 1781828 B1 EP1781828 B1 EP 1781828B1
Authority
EP
European Patent Office
Prior art keywords
gas
hot
temperature
thermal insulation
corrosion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP05769577A
Other languages
German (de)
English (en)
Other versions
EP1781828A2 (fr
Inventor
Michael Meckelnburg
Rene Gross
Kurt Weber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Friatec AG
Original Assignee
Friatec AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Friatec AG filed Critical Friatec AG
Publication of EP1781828A2 publication Critical patent/EP1781828A2/fr
Application granted granted Critical
Publication of EP1781828B1 publication Critical patent/EP1781828B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B9/00—Stoves for heating the blast in blast furnaces
    • C21B9/02—Brick hot-blast stoves
    • C21B9/06—Linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/0003—Linings or walls
    • F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics

Definitions

  • the invention relates to technical systems such as blast furnaces with the associated hot blast line and the hot blast valve, in which condensates of gaseous, corrosive media of high temperature arise, which cause damage to metal walls of technical equipment.
  • the invention particularly relates to a shut-off device for high-temperature gaseous media for shutting off the hot gas lines leading from a hot blast to a blast furnace comprising a housing with sealing seats cooled by a cooling medium and a shut-off device cooled by a cooling medium in the housing with the exception of the housing sealing seats and the sealing surfaces on the obturator all surfaces coming into contact with the hot gas are provided with a refractory coating.
  • Water vapor is always present in the interior of blast furnaces, hot blast lines and hot windscreens. During the heating season, it comes mainly from the combustion products, in the wind period it comes from the humid air. The water vapor passes through joints and macroscopic cracks of the refractory lining, such as refractory concrete, but also through microscopic channels of porous refractory bricks as well as through the existing mineral fiber mats additional internal insulation or ramming masses on the inside of the steel shell. If the sheet steel jacket temperature is lower than the dew point temperature, condensation of liquid water contaminated with pollutants occurs. The contaminated with pollutants condensate leads to corrosion and thus to corresponding damage to the steel shell.
  • the external or internal insulation pursues the goal of keeping the sheet steel jacket temperature above the dew point temperature in order to avoid the formation of condensation and thus the formation of corrosive liquids.
  • the dew point temperature is dependent on the gas atmosphere in the interior of the gasifier, which is thermodynamically referred to as a two-component gas mixture, namely as a gas-vapor mixture, both in the heating and in the wind period.
  • a two-component gas mixture namely as a gas-vapor mixture
  • the dew point temperature at a pressure of 1 bar is about 60 ° C
  • the dew point temperature rises to about 100 ° C.
  • the water vapor concentration is subject to fluctuations because the injected air comes out of the normal (ambient) atmosphere and is subject to daily and seasonal variations in moisture content.
  • Another parameter that influences the dew point temperature is the chemical composition of the gas atmosphere in the heater.
  • the dew point temperature changes.
  • the dew point temperature changes from 45 ° C to 55 ° C.
  • the sulfuric acid content is the same, the dew point temperature rises from 45 ° C to 185 ° C.
  • Condensation of corrosive liquids can be prevented by constructive design of blast furnaces, hot blast lines and hot air slides, if the inner surfaces of the steel shells always remain so warm that the dew point temperature is not undercut.
  • the ambient temperature plays a crucial role. It can vary considerably depending on where in the world the hot water heater is located. Temperatures above 30 ° C may occur in Canada during the summer, but severe winters can also experience significant negative temperatures from -20 ° C to -40 ° C.
  • the outside temperature is 45 ° C and the hot air temperature about 1150 ° C on the first insulating layer, the usual refractory concrete with hot winders, and a high thermal insulation additional insulation between the refractory concrete and the steel jacket, so raises a temperature on the inside of the steel shell of about 185 ° C.
  • the level of the temperature of a dew point undershoot has a significant influence on the composition of the condensate and the corrosion behavior. At small temperature drops below the dew point temperature, small pH values are established. At pH values below 3, it is generally known that intercrystalline stress corrosion cracking does not occur on low-alloyed steels, but surface corrosion, also known as cavity corrosion, is known.
  • the design of the steel sheath plays an important role because of the influence of the outside temperature on the dew point temperature, especially in an inner insulation. If the temperature on the inner surface of the sheet-steel jacket is constructively kept well above the dew-point temperature, temperature-dependent strength and tensile stress problems occur.
  • the rise and fall of the tensile stresses that are due to the periodic interplay of the heating and wind periods during the Winderhitzer Anlagen process causes alternating strain, which occurs at a frequency of 5000 to 8000 load cycles annually and damage to the usually brittle protective layers of the jacket plates both the Winderhitzers guiding the hot-air pipe as well as the hot-air valve.
  • the formation of the corrosion-inducing ammonium nitrate is responsible for the formation of nitrogen oxides NO x during the various operating phases of the coke oven. It is known, for example, that the NO x concentration increases with increasing temperature. Furthermore, temperature-independent causes play a role in the formation of nitrogen oxide: for example, NO is produced by the fuel during the heating period.
  • the blast furnace gas contains HCN and NH 3 , during combustion, NO is formed.
  • NO formation takes place thermally in the switching periods, in the waiting and wind periods from N 2 and O 2 .
  • the convective mass transport in the changeover periods also has a considerable influence on the NO concentration. Striking is the particularly high NO concentration during filling.
  • the associated convective mass transfer means that the gas with the high NO concentration from the interior actually reaches the steel jacket.
  • the object of the invention is therefore to reduce the resulting corrosion based on nitrogen oxides.
  • the humid gas atmosphere in addition to nitrogen oxides NO 2 also contains sulfur oxides SO 2
  • a condensate with sulfuric acid H 2 SO 4 and nitric acid HNO 3 is formed during cooling.
  • HNO 3 is almost completely reduced to NH 3 .
  • the neutralization with H 2 SO 4 then ammonium sulfates (NH 4 ) 2 SO 4 or NH 4 HSO 4 are formed.
  • the condensate formed contains only HNO 3 . Under these conditions, ammonium nitrate NH 4 NO 3 is formed. This corresponds to a 50% conversion to NH 3 , but a 100% neutralization of HNO 3 .
  • the SO 2 in the gas atmosphere must therefore be given a protective action against the stress cracking corrosion-inducing ammonium nitrate, because it prevents its formation by reducing the nitrate ions.
  • the presence of SO 2 leads to the above-mentioned erosive corrosion.
  • the attachment of the thermal insulation material takes place in conventional hot-winders, for example, by expansion anchors made of metal, which are fastened with stud welding equipment to the sheet steel jacket construction.
  • the metallic expansion anchors hold the thermal insulation material and hold the entire system together by setting in the refractory lining. Disadvantage of this metallic solution is that the expansion anchors pass the heat to the steel jacket construction.
  • the prior art are anchors consisting of a threaded pin on which a ceramic cap is attached in order to achieve a certain thermal insulation.
  • a refractory concrete layer can not be attached to these ceramic caps.
  • the water pipes for the inlet and the outlet of the coolant are not isolated in the prior art, although they come in contact with the closed slide with the hot gas-steam mixtures.
  • the open position of the hot air slide with the hot gas-steam mixtures coming into contact sealing and contact surfaces of the hot air slide plate and the housing side sealing surfaces are also not isolated in the prior art.
  • the contact surface of the hot-air slide plate and a housing sealing seat and the sealing seat of the hot-air slide plate, which is arranged opposite the shut-off side come into contact with the hot gas.
  • the DE 1 955 063 B1 discloses a high temperature gaseous media shut-off device having the features of the preamble of claim 1.
  • the inner structure consists of a refractory lining, behind which then the insulation is located.
  • An object of the invention is to develop a generic shut-off device for a technical system to the effect that acid and stress corrosion cracking on sheet steel jacket is largely avoided, although the use expensive materials should be dispensed with.
  • shut-off device according to claim 1.
  • the invention can be used in technical systems from the group of hot-air valves, blast heaters, blast furnace lines or exhaust pipes in power plants, in which ambient air is heated as described above and this forms a corrosive condensate by changing the chemical composition.
  • the invention particularly describes a shut-off device for gaseous media of high temperature, in particular for shutting off the hot gas lines leading from blast furnaces to a blast furnace, wherein the shut-off device consists of a support structure, with a movably arranged in a housing, cooled by a cooling medium obturator, wherein with the Hot gas coming into contact surfaces are partially provided with a refractory coating and a gas-vapor mixture barrier is arranged on the inside of the support structure.
  • materials with a finely porous xonolite structure are used, the crystals of which have fumed silicas as a finely porous insulating material and as a matrix stabilizer.
  • Such materials are characterized by their homogeneity, strength and good processability; Furthermore, their thermal conductivity values are many times lower than, for example, refractory or refractory concrete. If so far heat insulation materials Usually used as a rear insulation, these new materials can also be used directly in the combustion chamber. These are, for example, thermal insulation boards with a vermiculite coating.
  • refractory which are stable at high temperatures (about 600 to 2000 ° C).
  • temperatures about 600 to 2000 ° C.
  • the thermal insulation boards with a vermiculite coating have classification temperatures of around 1000 ° C and are therefore "fire-proof" in the language, but no longer according to the standard temperature of 1500 ° C to be considered by the expert.
  • Advantage of the invention is that when using a gas-vapor mixture barrier, the thermal insulation increased and thus energy loss can be reduced because the sheet steel jacket temperature can be lowered to the ambient temperature or below, because the dew point temperature falls below in the interior no longer matters.
  • the gas-vapor mixture barrier can be designed in the arrangement between the refractory lining and the thermal insulation so that no water gets to the insulation, so this does not necessarily have to be made of water-repellent material.
  • the cause of the use of water-repellent material in the production of thermal insulation lies in the processing of the refractory lining. In the processing of refractory concrete or light refractory concrete water is used, which comes to the material used for the thermal insulation.
  • the gas-vapor mixture barrier is executed, other parameters are taken into account, such as the thermal expansion behavior and the corrosion behavior of the gas-vapor mixture barrier itself.
  • thermal insulation material is as a thermal insulation material with a clear opposite to that in the patent DE 41 38 283 C1 proposed mineral fiber mats used reduced thermal conductivity, namely powder-filament mixtures pressed in solid plates, in blocks or in glass fabric. Their thermal conductivity is four times less than that of mineral fiber mats.
  • the use of vacuum evacuated, pressed powdered filament, the thermal conductivity in a temperature range of 100 ° C to 500 ° C to the order of ⁇ ⁇ 0.01 W / mK to ⁇ ⁇ 0.016 W / mK reduce.
  • the thermal insulation material is additionally protected from moisture and water by the vacuum cladding. Water-repellent, not by a vacuum cladding Protected powder filaments must be specially treated by the manufacturer to achieve a water-repellent property.
  • These pressed powder filaments are more expensive, have a higher thermal conductivity and thus lower thermal insulation. If no vacuum-clad powder filament is used, the gas-vapor mixture barrier also provides protection against moisture and water, but approximately doubles the thermal conductivity. The extent of thermal insulation can be adapted to the temperature distribution in the interior of the support structure accordingly.
  • the gas-vapor mixture barrier is metallic. Then, the high-temperature corrosion behavior must be taken into account, since in a metallic design, a minimum temperature must be maintained, which is above the dew point of the gas-vapor mixture used, in the example of a hot blast valve at about 200 ° C.
  • the gas-vapor mixture barrier can also be integrated in the thermal insulation or between the refractory lining and the thermal insulation.
  • the gas-vapor mixture barrier is not metallic, so that it can not be attacked by corrosion.
  • any condensates would have to be dissipated, so that preferably the minimum temperature of 200 ° C in a hot blast valve is also complied with.
  • the gas-vapor mixture barrier is designed as a vacuum envelope of a vacuum-evacuated thermal insulation with a powder-filament material.
  • Variant (f) reduces costs, since the material for thermal insulation does not need to be water-repellent.
  • the individual components material for thermal insulation, gas-vapor mixture barrier and refractory coating affect each other and must be in their thermal expansion be tuned to each other so that they can move to each other without damaging each other.
  • FIG. 1 shows a shut-off device in a section transverse to the flow direction, which is designed as a hot-air slide.
  • the slide housing 1 has a flange-mounted hood 2, into which a slider plate 3 designed as a shut-off element can be inserted.
  • This slide plate 3 is formed as a hollow body and internally provided with spiral coolant channels, which are flowed through by a coolant.
  • the slide plate 3 is suspended from two push rods 4a, 4b, which are hollow and at the same time serve the supply 4b and discharge 4a of coolant.
  • the push rods 4a and 4b extend through a flanged at the top of the housing 1 hood 2, which are shaped and dimensioned is that it can accommodate the slide plate 3 in the open position of the shut-off device.
  • hood 2 At the top of the hood 2 there are passages for the push rods 4a and 4b. Stuffing box gaskets at the passages are used to separate the interior environment of the hot air slide from the environment. Not shown is the adjustment mechanism for the two push rods 4a and 4b.
  • the hood 2 is provided on its outside with reinforcing ribs 5, which are reduced to a required number for the mechanical strength.
  • the inner surfaces of the device which come into contact with the hot gas are provided with refractory coatings 6.
  • the lying directly in the hot gas flow surfaces, ie the slide plate 3 and the inner wall of the housing 1 are coated with a sufficiently thick layer of a dense and mechanically resistant refractory concrete 6. This layer 6 is secured by Spreizankem 9 on the support structure.
  • a highly heat-insulating layer 7 is arranged between the layer of refractory concrete 6 and the supporting metal structure.
  • the inner surfaces of the hood 2 and other not directly coming into contact with the hot gas inner surfaces are in contrast covered with a light refractory concrete 8.
  • the gas-vapor mixture barrier is alternatively integrated in the refractory layer 6 or in the heat-insulating layer 7 or arranged between the two.
  • FIG. 2 shows the in FIG. 1 Shut-off device shown in a section parallel to the flow direction.
  • the gas-vapor mixture barrier 10 is arranged as a relatively thin layer compared to the refractory layer 6 between the metal construction of the housing 1 and the refractory coating 6.
  • FIG. 3 shows in a section through the slider housing 1 and through the layers arranged inside heat-insulating layer 7 and fire-retardant layer 6 a section of the inner lining.
  • the gas-vapor mixture barrier 10 is made of a sheet or a metallic foil and is disposed between the heat-insulating layer 7 and the fire-retardant layer 6.
  • FIG. 4 shows in a section corresponding to the FIG. 3 an embodiment with within the refractory lining 6 integrated gas-vapor mixture barrier 10 in multi-layer structure of the refractory lining. 6
  • FIG. 5 shows in a section corresponding to the FIG. 3 an embodiment with a gas-vapor mixture barrier 10, which is integrated within a multi-layered thermal insulation 7.
  • the gas-vapor mixture barrier 10 may for example consist of plastic, which may be reinforced with glass fibers or carbon fibers.
  • FIG. 6 shows in a section corresponding to the FIG. 3 an embodiment with a gas-vapor mixture barrier 10, which is designed as a vacuum envelope, which may consist of a metallic material or a non-metallic material or a combination of these two materials.
  • the vacuum envelope encloses heat-insulating material 7.
  • the material for the thermal insulation is preferably a compressed powder-in-plate mixture, for example Al 2 O 3 + SiO 2 .
  • the invention relates to a support structure of a technical system of non-corrosion resistant material whose inner wall at least temporarily includes a corrosive and abrasive gas-vapor mixture and is protected from acid corrosion by a gas-vapor mixture barrier, which provides mechanical protection against penetration of the Gas-vapor mixture through the insulating insulation to the inner wall of the support structure forms.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Insulation (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Coating With Molten Metal (AREA)
  • Details Of Valves (AREA)

Claims (5)

  1. Dispositif barrière pour des milieux gazeux à température élevée, destiné à faire office de barrière pour des conduites de gaz chaud qui partent de régénérateurs jusqu'à un haut fourneau, constitué d'une structure de support munie d'un carter (1) comportant un capot à brides (2), à l'intérieur duquel est monté un organe barrière (3) refroidi par un fluide de refroidissement et agencé de manière mobile, dans lequel les surfaces exposées à l'écoulement de gaz chaud sont munies d'un revêtement réfractaire (6), caractérisé en ce que les surfaces intérieures du capot (2) et d'autres surfaces intérieures n'entrant pas directement en contact avec le gaz chaud sont munies d'un garnissage (8) résistant au feu, et en ce qu'une barrière au mélange gaz-vapeur (10) est disposée sur le côté intérieur de la structure de support.
  2. Dispositif barrière selon la revendication 1, caractérisé en ce que la barrière au mélange gaz-vapeur (10) est réalisée :
    (a) soit en la disposant entre le revêtement réfractaire (6), par exemple un béton réfractaire, un béton réfractaire léger, des briques réfractaires légères ou des plaques thermiquement isolantes, adaptées au foyer et ayant une surface en vermiculite, et une isolation calorifuge (7),
    (b) soit en l'intégrant dans le revêtement réfractaire (6) dans une structure à plusieurs couches.
  3. Dispositif barrière selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le matériau d'isolation thermique de l'isolation à pouvoir calorifuge élevé (7) a une conductivité thermique réduite et est constitué de mélanges de filaments en poudre comprimés pour obtenir des plaques pleines, des blocs ou un tissu de verre, ayant une conductivité thermique de λ < 0,01 W/mK à λ < 0,016 W/mK dans une plage de températures de 100 °C à 500 °C.
  4. Dispositif barrière selon la revendication 3, caractérisé en ce que le filament est mis sous vide.
  5. Dispositif barrière selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la barrière au mélange gaz-vapeur (10) est constituée :
    (d) d'un métal résistant à la corrosion à haute température,
    (e) d'un non-métal résistant à une température minimale de 200 °C, ou
    (f) d'une enveloppe à vide.
EP05769577A 2004-08-21 2005-07-26 Dispositif pour proteger des surfaces metalliques de condensats de milieux corrosifs a haute temperature dans des installations techniques Expired - Lifetime EP1781828B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004040625A DE102004040625B3 (de) 2004-08-21 2004-08-21 Absperrvorrichtung für gasförmige Medien hoher Temperatur
PCT/DE2005/001311 WO2006021176A2 (fr) 2004-08-21 2005-07-26 Dispositif pour proteger des surfaces metalliques de condensats de milieux corrosifs a haute temperature dans des installations techniques

Publications (2)

Publication Number Publication Date
EP1781828A2 EP1781828A2 (fr) 2007-05-09
EP1781828B1 true EP1781828B1 (fr) 2010-12-22

Family

ID=34981558

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05769577A Expired - Lifetime EP1781828B1 (fr) 2004-08-21 2005-07-26 Dispositif pour proteger des surfaces metalliques de condensats de milieux corrosifs a haute temperature dans des installations techniques

Country Status (11)

Country Link
US (1) US20090042156A1 (fr)
EP (1) EP1781828B1 (fr)
JP (1) JP2008510882A (fr)
CN (1) CN101044254B (fr)
AT (1) ATE492656T1 (fr)
BR (1) BRPI0514506A (fr)
CA (1) CA2577541A1 (fr)
DE (2) DE102004040625B3 (fr)
EA (1) EA010510B1 (fr)
MX (1) MX2007002088A (fr)
WO (1) WO2006021176A2 (fr)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100199678A1 (en) * 2007-09-13 2010-08-12 Claus Krusch Corrosion-Resistant Pressure Vessel Steel Product, a Process for Producing It and a Gas Turbine Component
WO2009065625A1 (fr) * 2007-11-23 2009-05-28 Siemens Aktiengesellschaft Élément de brûleur et brûleur comportant un placage en alumine et procédé de placage d'un élément de brûleur
EP2143819A1 (fr) * 2008-07-11 2010-01-13 Siemens Aktiengesellschaft Procédé de revêtement et revêtement anticorrosif pour composants de turbines
US9359554B2 (en) 2012-08-17 2016-06-07 Suncoke Technology And Development Llc Automatic draft control system for coke plants
CN102912058B (zh) * 2012-10-30 2015-05-27 中冶东方工程技术有限公司 一种用于直接还原铁竖炉的热风炉系统中的热风阀
US10016714B2 (en) 2012-12-28 2018-07-10 Suncoke Technology And Development Llc Systems and methods for removing mercury from emissions
US9476547B2 (en) 2012-12-28 2016-10-25 Suncoke Technology And Development Llc Exhaust flow modifier, duct intersection incorporating the same, and methods therefor
CN104884578B (zh) 2012-12-28 2016-06-22 太阳焦炭科技和发展有限责任公司 通风竖管盖以及相关联的系统和方法
US10883051B2 (en) 2012-12-28 2021-01-05 Suncoke Technology And Development Llc Methods and systems for improved coke quenching
US9273250B2 (en) 2013-03-15 2016-03-01 Suncoke Technology And Development Llc. Methods and systems for improved quench tower design
CA2961207C (fr) 2014-09-15 2023-04-18 Suncoke Technology And Development Llc Fours a coke a composants monolithiques
CN104455708B (zh) * 2014-12-09 2017-01-25 兰州高压阀门有限公司 1500℃超高温阀门阀体的冷却装置
US10968395B2 (en) 2014-12-31 2021-04-06 Suncoke Technology And Development Llc Multi-modal beds of coking material
WO2016109854A1 (fr) 2015-01-02 2016-07-07 Suncoke Technology And Development Llc Automatisation et optimisation intégrées d'une usine de fabrication de coke en utilisant des techniques de pointe en termes de contrôle et d'optimisation
DE102015104555A1 (de) * 2015-03-26 2016-09-29 Z & J Technologies Gmbh Doppelplattenschieber, Absperrplatte und Verfahren zum Abdichten eines Doppelplattenschiebers
US11360997B2 (en) 2015-12-21 2022-06-14 Sap Se Data synchronization error resolution based on UI manipulation actions
US10768794B2 (en) 2015-12-21 2020-09-08 Sap Se Truncated synchronization of data object instances
RU2746968C2 (ru) 2016-06-03 2021-04-22 САНКОУК ТЕКНОЛОДЖИ ЭНД ДИВЕЛОПМЕНТ ЭлЭлСи. Способы и системы для автоматического создания корректирующих действий в промышленном объекте
RU2768916C2 (ru) 2017-05-23 2022-03-25 САНКОУК ТЕКНОЛОДЖИ ЭНД ДИВЕЛОПМЕНТ ЭлЭлСи Система и способ ремонта коксовой печи
US11008518B2 (en) 2018-12-28 2021-05-18 Suncoke Technology And Development Llc Coke plant tunnel repair and flexible joints
WO2020140079A1 (fr) 2018-12-28 2020-07-02 Suncoke Technology And Development Llc Décarbonisation de fours à coke, et systèmes et procédés associés
BR112021012511B1 (pt) 2018-12-28 2023-05-02 Suncoke Technology And Development Llc Sistema de forno de recuperação de calor carregado por mola e método
WO2020140074A1 (fr) * 2018-12-28 2020-07-02 Suncoke Technology And Development Llc Montées de gaz de four améliorées
US11395989B2 (en) 2018-12-31 2022-07-26 Suncoke Technology And Development Llc Methods and systems for providing corrosion resistant surfaces in contaminant treatment systems
CA3097107C (fr) 2019-10-28 2022-04-26 Donald Groome Systeme de ventilation pour tuyau isole
US12227699B2 (en) 2019-12-26 2025-02-18 Suncoke Technology And Development Llc Oven health optimization systems and methods
EP4146767A4 (fr) 2020-05-03 2024-07-31 Suncoke Technology and Development LLC Produits de coke de grande qualité
JP7595191B2 (ja) 2021-11-04 2024-12-05 サンコーク テクノロジー アンド ディベロップメント リミテッド ライアビリティ カンパニー 鋳物用コークス生産物、及び関連システム、装置並びに方法
US11946108B2 (en) 2021-11-04 2024-04-02 Suncoke Technology And Development Llc Foundry coke products and associated processing methods via cupolas
CN115127353B (zh) * 2022-06-15 2024-09-13 中冶赛迪工程技术股份有限公司 一种长寿命横向风冷直流电弧炉底结构
CN115125346A (zh) * 2022-06-24 2022-09-30 广东韶钢松山股份有限公司 一种可调节的高炉热风阀、冷却调节方法及漏水检测方法
WO2024098010A1 (fr) 2022-11-04 2024-05-10 Suncoke Technology And Development Llc Mélanges de charbon, produits de coke de fonderie et systèmes, dispositifs et procédés associés
WO2025111437A1 (fr) 2023-11-21 2025-05-30 Suncoke Technology And Development Llc Lorry pour du coke de fonderie et systèmes et procédés associés
CN118758841B (zh) * 2024-07-17 2025-12-09 西安交通大学 一种组分可调节式露点腐蚀实验系统与方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2745173A (en) * 1951-07-14 1956-05-15 Gen Electric Method of thermal insulation
US3266517A (en) * 1964-02-12 1966-08-16 Kinney Eng Inc S P Gate valve for use in hot blast lines
DE1955063U (de) * 1966-12-07 1967-02-09 Alfred Werner Lemmer Sonnenschirmstaender.
US3552423A (en) * 1968-06-18 1971-01-05 Koppers Co Inc Burner shut-off valve for hot blast stove
BE757630A (fr) * 1969-11-03 1971-04-01 Didier Werke Ag Appareils a chauffer le vent ou cowpers, a enveloppe exterieureen tole et garniture interieure
DE2112581C3 (de) * 1971-03-16 1975-02-06 Plibrico Co. Gmbh, 4000 Duesseldorf Feuerfeste Wandkonstruktion für Industrieöfen
US4763458A (en) * 1982-05-18 1988-08-16 Ksm Fastening Systems, Inc. Insulation system and method and apparatus for retaining same
LU85513A1 (fr) * 1984-08-17 1986-03-11 Sidmar Nv Vanne a vent chaud
US5018328A (en) * 1989-12-18 1991-05-28 Whirlpool Corporation Multi-compartment vacuum insulation panels
DE4029405A1 (de) * 1990-03-16 1991-09-19 Degussa Formkoerper zur waermedaemmung
DE4138283C1 (fr) * 1991-11-21 1992-12-10 Zimmermann & Jansen Gmbh
DE19611532C1 (de) * 1996-03-23 1997-06-12 Didier Werke Ag Feuerraumwandung
JPH10291869A (ja) * 1997-04-22 1998-11-04 Unitika Ltd カーボン断熱材及びその製造方法
US6440220B1 (en) * 1998-10-23 2002-08-27 Goodrich Corporation Method and apparatus for inhibiting infiltration of a reactive gas into porous refractory insulation

Also Published As

Publication number Publication date
JP2008510882A (ja) 2008-04-10
EP1781828A2 (fr) 2007-05-09
CN101044254A (zh) 2007-09-26
CA2577541A1 (fr) 2006-03-02
DE502005010721D1 (de) 2011-02-03
EA010510B1 (ru) 2008-10-30
WO2006021176A2 (fr) 2006-03-02
US20090042156A1 (en) 2009-02-12
MX2007002088A (es) 2007-10-08
EA200700396A1 (ru) 2007-10-26
DE102004040625B3 (de) 2006-04-20
CN101044254B (zh) 2011-03-09
ATE492656T1 (de) 2011-01-15
BRPI0514506A (pt) 2008-06-10
WO2006021176A3 (fr) 2006-10-19

Similar Documents

Publication Publication Date Title
EP1781828B1 (fr) Dispositif pour proteger des surfaces metalliques de condensats de milieux corrosifs a haute temperature dans des installations techniques
DE2952216A1 (de) Verfahren und einrichtung zur rueckgewinnung und wiederverwertung von waerme aus heissen gasen, insbesondere aus den abgasen metallurgischer prozesse
DE102013000424A1 (de) Verfahren und Vorrichtung zum Schutz von Wärmetauscherrohren sowie Keramikbauteil
DE3446649C2 (fr)
EP2024075B1 (fr) Conduit collecteur pour fours tubulaires fendus
EP2089147B1 (fr) Conduit collecteur pour fours tubulaires fendus
DE4138283C1 (fr)
EP2225492A1 (fr) Garnissage de paroi de fours industriels
DE2541610C2 (de) Verfahren zum Betreiben eines Winderhitzers
DE2504852B1 (de) Winderhitzer mit einem aeusseren blechmantel und einer inneren auskleidung
DE7515483U (de) Heizvorrichtung mit brennkammer
DE2742109A1 (de) Winderhitzer mit einem aus mantelschuessen geschweissten mantel
DE7700497U1 (de) Heizvorrichtung
DE102007062418A1 (de) Korrosionsgeschützter Rohrfeldstrahlungsüberhitzer
DE3413390A1 (de) Rauchrohr und verfahren zu seiner herstellung
DE4285C (de) Apparat zur Darstellung von Schwefelsäureanhydrit
DE19510544C1 (de) Absperrvorrichtung für Medien hoher Temperatur
AT213912B (de) Blechummantelung von Wasserrohrkesseln
DE2358678A1 (de) Einrichtung zur verfahrenstechnischen behandlung von gasen in verbindung mit einem regenerativen waermeaustauscher
DE717258C (de) Rekuperativ betriebener Hochofenwinderhitzer
DE2529120A1 (de) Winderhitzer fuer einen hochofen
DE4318042C1 (de) Innenschale für ein metallurgisches Gefäß
DD226734A3 (de) Absperrsystem fuer staubhaltige gase
DE2206207A1 (de) Einrichtung zur vermeidung von korrosionen an der innenflaeche des blechmantels von winderhitzern
DD282510A5 (de) Abluftstutzen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20070214

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20080814

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 502005010721

Country of ref document: DE

Date of ref document: 20110203

Kind code of ref document: P

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502005010721

Country of ref document: DE

Effective date: 20110203

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101222

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20101222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101222

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110322

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101222

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101222

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101222

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110422

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110422

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110402

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101222

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101222

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110323

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101222

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101222

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101222

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20110718

Year of fee payment: 7

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101222

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101222

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20110727

Year of fee payment: 7

REG Reference to a national code

Ref country code: NL

Ref legal event code: SD

Effective date: 20111102

26N No opposition filed

Effective date: 20110923

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110801

Year of fee payment: 7

Ref country code: GB

Payment date: 20110720

Year of fee payment: 7

Ref country code: SE

Payment date: 20110712

Year of fee payment: 7

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20111117 AND 20111123

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101222

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20110715

Year of fee payment: 7

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502005010721

Country of ref document: DE

Representative=s name: BOEHMERT & BOEHMERT, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502005010721

Country of ref document: DE

Effective date: 20110923

BERE Be: lapsed

Owner name: FRIATEC A.G.

Effective date: 20110731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110731

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502005010721

Country of ref document: DE

Owner name: TH. JANSEN-ARMATUREN GMBH, DE

Free format text: FORMER OWNER: FRIATEC AG, 68229 MANNHEIM, DE

Effective date: 20120113

Ref country code: DE

Ref legal event code: R082

Ref document number: 502005010721

Country of ref document: DE

Representative=s name: BOEHMERT & BOEHMERT, DE

Effective date: 20120113

Ref country code: DE

Ref legal event code: R082

Ref document number: 502005010721

Country of ref document: DE

Representative=s name: BOEHMERT & BOEHMERT ANWALTSPARTNERSCHAFT MBB -, DE

Effective date: 20120113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110731

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110731

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110731

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 492656

Country of ref document: AT

Kind code of ref document: T

Effective date: 20110726

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110726

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20130201

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20120726

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130329

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120731

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120726

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130201

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130201

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120727

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502005010721

Country of ref document: DE

Effective date: 20130201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120726